174 DESCRIPTIONS OF THE SHRUBS 



acantha has two grooved stones in smooth-stemmed fruit, Not only is 

 Cratsegus inonogyna much the commoner in cultivation in America but 

 it has many more named varieties. A good idea of the variation in this 

 species can be gained from the names given them : laciniata, cut-leaved ; 

 quercif61ia, oak-leaved ; hdrrida, very thorny ; pe"ndula, weeping ; strfcta, 

 very upright ; variegata, variegated-leaved ; alba plena, while-double- 

 flowered ; rubra plena, red-double-flowered ; bfcolor, two-colored (white 

 flowers with pink edges) ; Pauli, Paul's double scarlet. Of the true Cra- 

 taegus Oxyacautha there is a very distinct and showy variety, xantho- 

 carpa, with bright yellow fruit. 



[Seeds (1-2 years to grow) ; twig cuttings.] 



KEY TO A FEW OF THE MOKE ORNAMENTAL SPE- 

 CIES OF CRAT.EGUS, INCLUDING PYRACANTHA 



* Leaves decidedly lobed. (A.) 



A. Fruit inch or more wide and retaining the calyx. (B.) 



B. Fruit oval with one stone ; stems of flowers and fruit usually 

 distinctly hairy. HAWTHORN (2(52) Cratsegus mon6gyna. 



B. Fruit nearly globular with two stones, each with two grooves 

 on the inner side. ENGLISH HAWTHORN or MAY (261) Cra- 

 tsegus Oxyacantha. 



A. Fruit small, only about inch wide, and with deciduous 

 calyx. (C.) 



C. Leaves deeply cleft, sometimes divided nearly to the midrib, 

 |-1^ inches long; fruit dropping in the early winter ; spines 

 stout, 1-1 inches long. PARSLEY-LEAVED HAW (2(53) Cra- 

 tsegus Marshallii (C. apiifftlia). 



C. Leaves less deeply cleft and larger, 14-2 inches long; fruit 

 remaining on through the winter; spines slender, l|-2 inches 

 long. WASHINGTON THORN - - Cratsegus Phsenopyrum (C. 

 cordata) . 



* Leaves doubly serrate rather than lobed, broad at base. (D.) 



D. Leaves thick ; flowers large, f-1 inch wide, with yellow an- 

 thers ; fruit with 3-5 stones. (E.) 



E. Leaves widest at or beyond the middle ; stamens 10 ; fruit 

 nearly globular, \ inch, dark crimson, ripening late in Oct. 

 and soon dropping. SCARLKT HAW Cratsegus coccfnea. 

 E. Leaves widest near the base ; stamens 20 ; fruit ripening in 

 Aug., large, f-1 inch, pubescent, scarlet with darker dots, on 

 drooping stems, flesh yellow, dry and mealy. RED HAW 

 (264) Cratsegus rnollis. 



